A TM44 inspection is a mandatory Air Conditioning Energy Assessment required in the UK under the Energy Performance of Buildings Directive (EPBD). It applies to systems with a total cooling capacity over 12kW and must be conducted every 5 years by an accredited assessor, following CIBSE TM44 guidance.

Yes, if the combined effective rated cooling output of all air conditioning systems controlled by a single operator within a building exceeds 12kW, a valid TM44 inspection report is legally required. Inspections must be carried out every five years to maintain compliance.

TM44 inspections must be performed by qualified Air Conditioning Energy Assessors who are accredited and registered with a government-approved scheme. Our assessors hold the necessary accreditation to provide fully compliant reports.

The accredited assessor will review relevant system documentation (such as F-Gas logs, maintenance records, manuals), conduct a visual inspection of accessible air conditioning components (indoor units, outdoor plant, controls), assess how the systems are operated and maintained, and evaluate if they are appropriately sized for the building's cooling needs.

Beyond meeting legal requirements, the TM44 report delivers significant value. It provides impartial, expert recommendations on improving your system's energy efficiency, potentially leading to substantial operational cost savings, a lower carbon footprint, and enhanced system reliability.

A TM44 inspection report and the associated certificate lodged on the national register are valid for five years from the date the inspection was completed. To remain compliant, a new inspection must be undertaken before this five-year period expires.